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7 Process data transfer

43 Lenze · E94AYCEP communication module (POWERLINK MN/CN) · Communication Manual · DMS 6.0 EN · 02/2014 · TD17

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7 Process data transfer

POWERLINK transmits process data, parameter data, configuration data and diagnostic data

between the Managing Node and the Controlled Nodes. Depending on their time-critical behaviour,

the data are transmitted via different communication channels.

• Process data are transmitted via the process data channel.

• Process data serve to control the Servo Drive 9400.

• The transmission of process data is time-critical.

• Process data are cyclically transferred between the Managing Node and the Controlled Nodes

(permanent exchange of current input and output data).

• The Managing Node can directly access the process data. In the PLC, for instance, the data are

directly assigned to the I/O area.

• 1 ... 10 process data words (16 bits/word) can be received:

PDO_RX01 (C13231

/ C14231) ... PDO_RX10 (C13240 / C14240).

• 1 process data word can be sent:

PDO_TX01 (C13531

/ C14531)

• Process data are not saved in the Servo Drive 9400.

• Process data are e.g. setpoints, actual values, control words, and status words.

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Lenze E94AYCEP Bedienungsanleitung Seite 42